/**
 * Foundation Section Styles - Stack Cards Effect
 *
 * @package Eryvium
 * @since Eryvium 1.0.0
 */

/* Section Wrapper */
.foundation-section {
	position: relative;
	padding: clamp(80px, 12vw, 160px) 0;
	background: linear-gradient(180deg, #FFFFFF 0%, #CCE3FB 100%);
}

.foundation-section__container {
	width: 100%;
	max-width: var(--container-max-width);
	margin: 0 auto;
	padding: 0;
}

.foundation-section__title {
	text-align: center;
	margin-bottom: clamp(40px, 6vw, 80px);
}

/* Stack Cards Container */
.stack-cards {
	--stack-cards-gap: 32px;
	width: 100%;
	display: flex;
	flex-direction: column;
	gap: 140px; /* Большой gap для скролла */
	align-items: center;
	list-style: none;
	padding: 0;
	margin: 0;
}

/* Card Item - Sticky */
.stack-cards__item {
	position: sticky;
	top: 150px;
	height: 0;
	padding-bottom: 39.54%; /* 514 / 1300 * 100 */
	transform-origin: center top;
	overflow: hidden;
	width: 100%;
	max-width: 1300px;
	border-radius: var(--border-radius-lg);
	will-change: transform, opacity;
	transition: opacity 0.1s ease-out;
}

/* Inner content absolute positioning */
.stack-cards__item > * {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

/* Foundation Card */
.foundation-card {
	width: 100%;
	height: 514px;
	background: #ffffff;
	border-radius: var(--border-radius-lg);
	box-shadow: var(--shadow-lg);
	display: flex;
	overflow: hidden;
}

/* Card Left Side - Text Content */
.foundation-card__left {
	flex: 1 1 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 64px 56px;
	width: 50%;
	align-items: flex-start;
}

.foundation-card__title {
	font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
	font-size: 24px;
	line-height: 36px;
	font-weight: 600;
	letter-spacing: 0%;
	color: var(--color-text);
	margin-bottom: 24px;
}

.foundation-card__desc {
	margin-bottom: 32px;
}

.foundation-card__desc p {
	font-size: clamp(14px, 1.1vw, 16px);
	line-height: 1.6;
	color: #4F6478;
	margin: 0;
}

/* Card Right Side - Image */
.foundation-card__right {
	flex: 1 1 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: 50%;
	overflow: hidden;
	border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
}

.foundation-card__right img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* Responsive Styles */
@media (max-width: 1400px) {
	.foundation-card__left,
	.foundation-card__right {
		padding: 48px 40px;
	}
}

@media (max-width: 1280px) {
	.foundation-card__right {
		padding: 0px;
	}
}

@media (max-width: 1024px) {
	.stack-cards {
		gap: 100px;
	}
	
	.stack-cards__item {
		top: 100px;
		padding-bottom: 45%;
	}
	
	.foundation-card {
		height: auto;
		min-height: 450px;
	}
	
	.foundation-card__left,
	.foundation-card__right {
		padding: 40px 32px;
	}
	
	.foundation-card__right {
		padding: 0;
	}
}

@media (max-width: 768px) {
	.stack-cards {
		gap: 140px; /* Большой gap для скролла, как на десктопе */
		display: flex;
		flex-direction: column;
	}
	
	.stack-cards__item {
		position: sticky !important;
		top: 100px !important;
		height: 100% !important;
		padding-bottom: 10% !important;
		margin-bottom: 0;
		will-change: transform, opacity !important;
	}
	
	.stack-cards__item > * {
		position: absolute !important;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
	}
	
	.foundation-card {
		flex-direction: column;
		border-radius: 18px;
		min-height: auto;
		height: auto;
		position: relative !important;
	}
	
	.foundation-card__left,
	.foundation-card__right {
		width: 100%;
		padding: 32px 24px;
	}
	
	.foundation-card__right {
		border-radius: 0 0 18px 18px;
		min-height: 300px;
	}
}

@media (max-width: 480px) {
	.foundation-card__left,
	.foundation-card__right {
		padding: 24px 16px;
	}
}

@media (max-width: 320px) {
	.foundation-section {
		position: relative;
		padding: clamp(80px, 12vw, 160px) 16px;
		background: linear-gradient(180deg, #FFFFFF 0%, #CCE3FB 100%);
	}
}